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AD7675 数据表(PDF) 4 Page - Analog Devices |
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AD7675 数据表(HTML) 4 Page - Analog Devices |
4 / 28 page AD7674 Parameter Conditions Min Typ Max Unit REFERENCE External Reference Voltage Range REF 3 4.096 AVDD + 0.1 V REF Voltage with Reference Buffer REFBUFIN = 2.5 V 4.05 4.096 4.15 V Reference Buffer Input Voltage Range REFBUFIN 1.8 2.5 2.6 V REFBUFIN Input Current –1 +1 µA REF Current Drain 800 kSPS Throughput 330 µA DIGITAL INPUTS Logic Levels VIL –0.3 +0.8 V VIH +2.0 DVDD + 0.3 V IIL –1 +1 µA IIH –1 +1 µA DIGITAL OUTPUTS Data Format5 Pipeline Delay6 VOL ISINK = 1.6 mA 0.4 V VOH ISOURCE = –500 µA OVDD – 0.6 V POWER SUPPLIES Specified Performance AVDD 4.75 5 5.25 V DVDD 4.75 5 5.25 V OVDD 2.7 DVDD + 0.37 V Operating Current8 800 kSPS Throughput AVDD 16 mA DVDD9 6.5 mA OVDD9 50 µA PDBUF High @ 500 kSPS10 78 90 mW PDBUF High @ 1 kSPS10 160 µW PDBUF High @ 800 kSPS8 114 126 mW POWER DISSIPATION9 PDBUF Low @ 800 kSPS8 126 138 mW TEMPERATURE RANGE11 Specified Performance TMIN to TMAX –40 +85 °C 1 See section. Analog Inputs 2 LSB means Least Significant Bit. With the ±4.096 V input range, 1 LSB is 31.25 µV. 3 See section. These parameters are centered on nominal values, which depend on the mode. In Warp mode, nominal zero error and nominal gain error are centered around 0 LSB. In Normal and Impulse modes, nominal zero error is +375 LSB, and nominal gain error is +0.273% of FSR. These specifications are the deviation from these nominal values. These specifications do not include the error contribution from the external reference but do include the error contribution from the reference buffer, if used. Definitions of Specifications 4 All specifications in dB are referred to a full-scale input, FS. Tested with an input signal at 0.5 dB below full scale unless otherwise specified. 5 Data Format Parallel or Serial 18-Bit. 6 Conversion results are available immediately after completed conversion. 7 The max should be the minimum of 5.25 V and DVDD + 0.3 V. 8 In Warp mode. 9 Tested in Parallel Reading mode. 10 In Impulse mode. 11 Contact factory for extended temperature range. Rev. 0 | Page 4 of 28 |
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类似说明 - AD7675 |
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